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A study on stress corrosion cracking and hydrogen embrittlement of AZ31 magnesium alloy

Song, R.G. / Blawert, C. / Dietzel, W. / Atrens, A.

The stress corrosion cracking (SCC) behavior and pre-exposure embrittlement of AZ31 magnesium alloy have been studied by slow strain rate tensile (SSRT) tests in this paper. It is showed that AZ31 sheet material is susceptible to SCC in distilled water, ASTM D1387 solution, 0.01 M NaCl and 0.1 M NaCl solution. The AZ31 magnesium alloy also becomes embrittled if pre-exposed to 0.01 M NaCl solution prior to tensile testing. The degree of embrittlement increased with increasing the pre-exposure time. It is proposed that both the pre-exposure embrittlement and SCC were due to hydrogen which reduces the cohesive strength, i.e., hydrogen embrittlement.

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A study on stress corrosion cracking and hydrogen embrittlement of AZ31 magnesium alloy

Song, R.G. / Blawert, C. / Dietzel, W. / Atrens, A.

The stress corrosion cracking (SCC) behavior and pre-exposure embrittlement of AZ31 magnesium alloy have been studied by slow strain rate tensile (SSRT) tests in this paper. It is showed that AZ31 sheet material is susceptible to SCC in distilled water, ASTM D1387 solution, 0.01 M NaCl and 0.1 M NaCl solution. The AZ31 magnesium alloy also becomes embrittled if pre-exposed to 0.01 M NaCl solution prior to tensile testing. The degree of embrittlement increased with increasing the pre-exposure time. It is proposed that both the pre-exposure embrittlement and SCC were due to hydrogen which reduces the cohesive strength, i.e., hydrogen embrittlement.

A study on stress corrosion cracking and hydrogen embrittlement of AZ31 magnesium alloy

Song, R.G. / Blawert, C. / Dietzel, W. / Atrens, A.

The stress corrosion cracking (SCC) behavior and pre-exposure embrittlement of AZ31 magnesium alloy have been studied by slow strain rate tensile (SSRT) tests in this paper. It is showed that AZ31 sheet material is susceptible to SCC in distilled water, ASTM D1387 solution, 0.01 M NaCl and 0.1 M NaCl solution. The AZ31 magnesium alloy also becomes embrittled if pre-exposed to 0.01 M NaCl solution prior to tensile testing. The degree of embrittlement increased with increasing the pre-exposure time. It is proposed that both the pre-exposure embrittlement and SCC were due to hydrogen which reduces the cohesive strength, i.e., hydrogen embrittlement.

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Title:

A study on stress corrosion cracking and hydrogen embrittlement of AZ31 magnesium alloy

Contributors:

Song, R.G. (author) / Blawert, C. (author) / Dietzel, W. (author) / Atrens, A. (author)

Published in:

Materials Science and Engineering, Part A (Structural Materials: Properties, Microstructure and Processing) ; 399 ; 308-317

Publication date:

2005

Size:

10 Seiten, 22 Quellen

ISSN:

DOI:

https://doi.org/10.1016/j.msea.2005.04.003

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Spannungsanalyse , Salzkorrosion , Risseinleitung , Wasserstoffversprödung , Zugspannung , Natriumchlorid , Wasserstoff , Spannungsrisskorrosion , destilliertes Wasser , Magnesiumlegierung , Zugfestigkeitsprüfung

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